Swimming at the 2012 Summer Olympics – Men's 100 metre butterfly
Final

Rank
Lane
Name
Nationality
Time
Notes
-
4
Michael Phelps
United States
51.21
-
-
5
Chad le Clos
South Africa
51.44
-
-
8
Yevgeny Korotyshkin
Russia
51.44
-
4
6
Milorad Čavić
Serbia
51.81
-
4
7
Steffen Deibler
Germany
51.81
-
6
2
Joeri Verlinden
Netherlands
51.82
-
7
3
Tyler McGill
United States
51.88
-
8
1
Konrad Czerniak
Poland
52.05
-

Question: What is the full name and nationality of the two swimmers that tied for 4th place in the Men's 100m butterfly at the 2012 Summer Olympics.
Answer: Serbia's Milorad Čavić and Germany's Steffen Deibler tied for fourth place.